Description: This Ajax
script enhances the default "title" attribute of HTML so certain
tooltips can instead get their contents from an external file, with rich HTML
content and all. Integration is easy and non obtrusive, and for the sake of
efficiency, the script will only use Ajax to load the tooltip's content the very
first time the user rolls over the attached element.

Example:

Try moving your mouse over this link to see an Ajax
tooltip shown, with its contents dynamically populated from an external file.
Or, try it with the below DIV instead:

Step 2: Then to add an ajax tooltip to any
element on your page, just use the "title" attribute of HTML as usual, but with
the following convention:

<a href="#" title="ajax:external.htm">Some
link</a>

where "external.htm" is to relative path to the external page on
your server to populate the tooltip using, always proceeded with the keyword "ajax:"
to tell the script that this is an ajax tooltip. For testing purposes, here is
the "external.htm" file (right click, and choose
"Save As") you can quickly use to test out the script.